Level 28 - they call these levels Death for a reason…
This was actually what my review queue looked like in July 2020, after not doing any in June:
My reviews never recovered, despite some efforts in July-September to do something, and sporadic reviews in the months after. It’s hard to be motivated when you have thousands of reviews…
On June 10, 2021, I performed a reset to level 22.
Then, yesterday, June 24, 2021, I broke my reviews-in-a-day record, and sent 525 reviews to their Death, getting a 60/0. You can see my Friday morning screenshots of the aftermath:
